Publications related to Exploration of candidate fusion reactor regimes by real time control of tokamak plasma shape

Experimental demonstration of an up-down asymmetry effect on intrinsic rotation in the TCV tokamak

Olivier Sauter, Basil Duval, Alexander Karpushov, Yann Camenen, Alessandro Bortolon, Lucia Isabel Federspiel, Francesco Piras

A new mechanism has recently been proposed that generates a radial flux of parallel momentum in toroidal plasmas. Namely, by considering up-down asymmetric flux surfaces, the symmetry following the magnetic field can be broken and an additional contributio ...

Institute of Physics2010

Architecture and commissioning of the TCV distributed feedback control system

Basil Duval, Stefano Coda, Jean-Marc Moret, Federico Alberto Alfredo Felici, James Paley

A new modular, digital, distributed feedback control system has been developed and installed to control the TCV plasma. With many more inputs and outputs, it provides the possibility to build control algorithms using far more information on the plasma stat ...

2010

Measurement of the magnetic field errors on TCV

Jean-Marc Moret, Francesco Piras, Jonathan Rossel

A set of 24 saddle loops is used on the Tokamak à Configuration Variable (TCV) to measure the radial magnetic flux at different toroidal and vertical positions. The new system is calibrated together with the standard magnetic diagnostics on TCV. Based on t ...

Fusion Engineering and Design2010

The Effect of Plasma Profile Variation on the Stability of the n = 1 Internal Kink Mode in Rotating Tokamak Plasmas

Jonathan Graves

The sensitivity of the stability of the ideal n = 1 internal kink mode to variations in the plasma profiles is analysed both analytically and numerically in rotating tokamak plasmas. These stability analyses have been carried out including the centrifugal ...

2010

The effect of plasma profile variation on the stability of the n=1 internal kink mode in rotating tokamak plasmas

Jonathan Graves

The sensitivity of the stability of the ideal n = 1 internal kink mode to variations in the plasma profiles is analysed both analytically and numerically in rotating tokamak plasmas. These stability analyses have been carried out including the centrifugal ...

2010

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

Laurent Villard, Stephan Brunner

An electron density gradient driven instability identified as the toroidal branch of the universal drift instability is studied using a global gyrokinetic model treating both electrons and ions fully nonadiabatically and valid at all orders in the ratio of ...

American Institute of Physics2010

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Jonathan Graves, Wilfred Anthony Cooper, Lucie Brocher

Ideal MHD yields at best inconclusive predictions about the stability of the LHD heliotron for

\langle \beta \rangle \geq 3\%

. We investigate the impact of the drift stabilization of ballooning modes for the inward shifted LHD configuration (vacuum magne ...

2010

Plasma rotation and momentum transport studies in the TCV tokamak based on charge exchange spectroscopy measurements

Alessandro Bortolon

Thermonuclear controlled fusion research is a highly active branch of plasma physics. The main goal is the production of energy from the fusion reaction of hydrogen isotope nuclei, the same reaction that powers stars. The most promising present approach ar ...

EPFL2009

Full tokamak discharge simulation and kinetic plasma profile control for ITER

Sun Hee Kim

Understanding non-linearly coupled physics between plasma transport and free-boundary equilibrium evolution is essential to operating future tokamak devices, such as ITER and DEMO, in the advanced tokamak operation regimes. To study the non-linearly couple ...

EPFL2009

Plasma fluctuation studies in the TCV tokamak

Alessandro Marinoni

One of the most important issues for magnetic-confinement fusion research is the so-called anomalous transport across magnetic field lines, i.e. transport that is in excess of that caused by collisional processes. The need to reduce anomalous transport in ...

EPFL2009

Exploration of candidate fusion reactor regimes by real time control of tokamak plasma shape

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Experimental demonstration of an up-down asymmetry effect on intrinsic rotation in the TCV tokamak

Architecture and commissioning of the TCV distributed feedback control system

Measurement of the magnetic field errors on TCV

The Effect of Plasma Profile Variation on the Stability of the n = 1 Internal Kink Mode in Rotating Tokamak Plasmas

The effect of plasma profile variation on the stability of the n=1 internal kink mode in rotating tokamak plasmas

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Plasma rotation and momentum transport studies in the TCV tokamak based on charge exchange spectroscopy measurements

Full tokamak discharge simulation and kinetic plasma profile control for ITER

Plasma fluctuation studies in the TCV tokamak

Measurement of the magnetic field errors on TCV

Plasma fluctuation studies in the TCV tokamak

Toroidal Universal Drift Instability: A Global Gyrokinetic Study

Experimental demonstration of an up-down asymmetry effect on intrinsic rotation in the TCV tokamak

Architecture and commissioning of the TCV distributed feedback control system

Plasma rotation and momentum transport studies in the TCV tokamak based on charge exchange spectroscopy measurements

The Effect of Plasma Profile Variation on the Stability of the n = 1 Internal Kink Mode in Rotating Tokamak Plasmas

The effect of plasma profile variation on the stability of the n=1 internal kink mode in rotating tokamak plasmas

Drift stabilization of ballooning modes in a high-$\langle \beta \rangle$ LHD configuration

Full tokamak discharge simulation and kinetic plasma profile control for ITER